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A276220 as a simple table

na(n)
11
22
34
45
57
68
79
811
912
1014
1115
1216
1318
1419
1520
1622
1723
1824
1926
2027
2128
2229
2331
2432
2533
2635
2736
2837
2938
3040
3141
3242
3343
3445
3546
3647
3748
3850
3951
4052
4153
4255
4356
4457
4558
4659
4761
4862
4963
5064
5166
5267
5368
5469
5571
5672
5773
5874
5975
6077
6178
6279
6380
6481
6583
6684

[1,2,4,5,7,8,9,11,12,14,15,16,18,19,20,22,23,24,
 26,27,28,29,31,32,33,35,36,37,38,40,41,42,43,45,
 46,47,48,50,51,52,53,55,56,57,58,59,61,62,63,64,
 66,67,68,69,71,72,73,74,75,77,78,79,80,81,83,84]